Integrated black and colored ink printheads
US7198353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2004 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Mar 22, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1645
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved ink jet printhead and method therefor. The printhead includes a single semiconductor substrate with ink ejection devices and a nozzle plate adjacent to the semiconductor substrate, the nozzle plate with first ink ejection nozzles for ejecting first ink drops having a first volume and second ink ejection nozzles for ejecting second ink drops having a second volume different from the first volume, wherein the first volume is defined by first flow features of the printhead having a first thickness and the second volume is defined by second flow features having a second thickness that is different from the first thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.